#!/usr/bin/env python
#
# Copyright 2007 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import cgi
import os
from google.appengine.api import users
from google.appengine.ext import webapp
from google.appengine.ext.webapp import util
from google.appengine.ext.webapp import template
from google.appengine.ext.webapp.util import run_wsgi_app
from google.appengine.ext import db
from google.appengine.ext.db import polymodel
from google.appengine.ext.db.metadata import Property

class AssetClass(polymodel.PolyModel):
    display_name 	= db.StringProperty()
    description 	= db.StringProperty(multiline=True)
    rating 			= db.RatingProperty()
    
    def syncProperty(self, handler, property):
    	if property == 'display_name':
    		self.display_name = handler.request.get(property)
    	elif property == 'description':
    		self.description = handler.request.get(property)
    	elif property == 'rating':
    		self.rating = int(handler.request.get(property))
    
    def makeId(self):
    	strQuery = "SELECT * FROM " + self.kind()
    	query = db.GqlQuery(strQuery)
    	id = 0
    	if query.count()>0:
    		for item in query:
    			id = max(item.id, id)
    	self.id = id + 1
    	
class Universe(AssetClass):
    id 	= db.IntegerProperty()

class Cateogry(AssetClass):
	id = db.IntegerProperty()
	universe_ref = db.ReferenceProperty()
	
class Asset(db.Model):
	id = db.IntegerProperty()
	category_ref = db.ReferenceProperty()

class FrameIAM_Universe(webapp.RequestHandler):
    def post(self):
        universe = Universe()
        universe.makeId()
        universe.syncProperty(self, 'display_name')
        universe.syncProperty(self, 'description')
        universe.syncProperty(self, 'rating')
        universe.put()
        self.redirect('/')
    
class MainPage(webapp.RequestHandler):
    def get(self):
    	universe_props = Property.all()
    	universe_props.ancestor(Property.key_for_kind('AssetClass'))
        universes = Universe.all()
        universes.order('-id')

        if users.get_current_user():
            url = users.create_logout_url(self.request.uri)
            url_linktext = 'Logout'
        else:
            url = users.create_login_url(self.request.uri)
            url_linktext = 'Login'

        template_values = {
        	'universe_props': universe_props,
            'universes': universes,
            'url': url,
            'url_linktext': url_linktext,
            }

        path = os.path.join(os.path.dirname(__file__), 'index.html')
        self.response.out.write(template.render(path, template_values))

application = webapp.WSGIApplication(
                                     [('/', MainPage),
                                      ('/universe', FrameIAM_Universe)],
                                     debug=True)

def main():
    run_wsgi_app(application)

if __name__ == "__main__":
    main()
